Whatever you use CLEAN the area real good with alcohol before sticking anything to it.
That's a good idea. I fixed a large tear (4 ft) on my 9m. Cleaned the area with alcohol, then taped it, then applied some heat with an iron. Still holding.
If the tear is around a bridal attachment point then you may want to sew the patch as well. It's hard to sew through tape by hand though but you can do it.